Fire resistant cables are often used to maintain circuit integrity of those vital life safety systems such as fire alarm and suppression services.
Difference between flame retardant and fire resistant cables.
Due to relative low cost fire retardant cables are widely used as fire survival cables.
But of course we have to learn more than that.
Flame retardant cables can resist the spread of fire but fire rated cables maintain circuit integrity and continue to work in the presence of fire.
Difference between flame retardant cable and fire resistant release time 2016 05 27 14 43 hit.
The biggest difference between flame resistant and flame retardant fabrics lies in how each is made.
The main code as follow.
Fire and disaster planning is painstaking so it is of the utmost importance that specifiers and contractors understand when to use flame retardant and when to use fire resistant cable what the differences are and how the right choices should be arrived at.
There are enormous differences between flame retardant cables and fire resistive cables.
Without a special chemical application a fabric will not qualify as flame retardant.
It s about the test code.
The title of iec 60331 is test for electric cables under fire conditions circuit integrity.
In term of cable construction it is essential to distinguish the outer sheath colour between flameretardant cable and fire resistant cable.
For iec 60322 is test on electric cable under fire conditions.
Similarly without being made of certain nonflammable fibers a fabric will not quality as fire resistant.
A flame resistant cable in this manner would let the circuit stay in operation allowing power to be transferred through it while this would not be the case with a flame retardant cable.
Typically flame retardant cables resist the spread of fire into a new area whereas fire resistive cables maintain circuit integrity and continue to work for a specific time under defined conditions.
Iec 60332 1 bs 4066 1 flame test on single vertical insulated wires cables.
This article below will describe the differences between flame retardant and fire rated cables.
Iec 60322 fire resistant.
Fireproof wire and cable is a general name for the fire resistance wire and cable usually divided into flame retardant wire and cable zr bv and fire resistant wire and cable nh bv.
A layer of non melting non flammable halogen free smoke free fire resistant plastic material is filled or wrapped between the cable insulated core and the cable sheath i e insulating organic is used to isolate the cable from the outside oxygen gas so that the cable is non.
Flame retardant cables are designed to resist the spread of fire into a new area.